Question

if A and B can do a work in 12 days and B and c can do work in 15 days then how many day if A and c can do together​

Answer 1

Answer:

10 days

Step-by-step explanation:

A and C can do it in 10 days

Answer 2

Answer:

60 days

Step-by-step explanation:

a+b=12

b+c=15 take lcm of both is 60

then density of both 5&4 then

work days of a+c = lcm/[a+b-(b+c)]

a+c=60/1

a+c=60 days. ans